Us Agricultural Research Service 1575 Agronomy Hall Ames, IA 50011 Phone : (515) 294-3122 Business Category Regulation Of Agricultural Marketing & Commodities United States Government--agriculture Department Of, Agricultural Research Service, Cereal & Soybean Unit Ames, IA 50010 Phone : (515) 294-3122 Business Category Government Offices-Federal Government Offices & Public Schools